EP3812737A1 - Procédé d'essai fonctionnel d'une reconnaissance d'occupation d'un siège de véhicule - Google Patents

Procédé d'essai fonctionnel d'une reconnaissance d'occupation d'un siège de véhicule Download PDF

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Publication number
EP3812737A1
EP3812737A1 EP20194244.8A EP20194244A EP3812737A1 EP 3812737 A1 EP3812737 A1 EP 3812737A1 EP 20194244 A EP20194244 A EP 20194244A EP 3812737 A1 EP3812737 A1 EP 3812737A1
Authority
EP
European Patent Office
Prior art keywords
test
seat
signal
unit
vehicle seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20194244.8A
Other languages
German (de)
English (en)
Inventor
Markus Prummer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Original Assignee
Audi AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Audi AG filed Critical Audi AG
Publication of EP3812737A1 publication Critical patent/EP3812737A1/fr
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/001—Testing of furniture, e.g. seats or mattresses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
    • G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
    • G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
    • G01G19/4142—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling activation of safety devices, e.g. airbag systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/01—Testing or calibrating of weighing apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests

Definitions

  • the invention relates to a method for functional testing of seat occupancy detection of a vehicle seat according to the preamble of the claim and a test arrangement for carrying out such a method according to claim 7.
  • a vehicle seat can have seat occupancy detection, in which an electronic control unit is in signal connection with a sensor element installed in the vehicle seat.
  • the sensor element detects seat occupancy and generates a corresponding occupancy signal, which is sent to the electronic control unit.
  • the electronic control unit can be integrated in an occupant protection system.
  • an airbag device assigned to the unoccupied vehicle seat can remain deactivated in a vehicle crash situation or an optical or acoustic warning can be output to the occupants while driving.
  • a complex functional test is carried out at the factory, in which the functionality of the seat occupancy detection is checked. For this purpose, test persons of different body shapes and different body weights sit on the vehicle seat to be tested in possibly varying sitting positions. If that is in If the sensor element installed in the vehicle seat generates an occupancy signal, the seat occupancy detection is functional.
  • the object of the invention is to provide a method for the functional test of seat occupancy detection of a vehicle seat and a test arrangement for carrying out such a method, with which the functional test can be carried out with reduced effort compared to the prior art.
  • the functional test is no longer carried out with test persons, but rather with an actuating unit that presses a test body simulating the vehicle occupant with a predetermined test force simulating the occupant weight on the seat surface of the vehicle seat.
  • An electronic test unit which is in signal connection with the sensor element, tests whether an occupancy signal generated by the sensor element is present. When such a movement signal is present, the electronic test unit determines the functionality of the seat occupancy detection. In particular, the test unit generates a corresponding functionality signal if the occupancy signal of the sensor element is present, or an error signal if there is no occupancy signal of the sensor element despite the test body being pressurized.
  • the actuating unit can press the test body against the seat surface of the vehicle seat with a predetermined test force in a robot-controlled manner.
  • the actuating unit can be a robotic arm.
  • the test unit can control the actuating unit with an actuating signal.
  • the actuating unit can control the test body Press against the seat surface of the vehicle seat with the specified test force.
  • the actuating unit together with the test body, the sensor element built into the vehicle seat and the electronic test unit are integrated in a control path by means of which the function test can be carried out fully automatically.
  • test body is U-shaped and roughly simulates an occupant's pelvis and occupant's thigh, which can be brought into pressure contact with the seat surface of the vehicle seat.
  • test bodies of different geometries can preferably be provided, with the aid of which different vehicle occupant body shapes can be reproduced.
  • a test routine can preferably take place in which, for at least one test body geometry, varying test forces are combined with varying test body positions to form pairs of values.
  • the test unit can determine a functionality signal if the sensor element generates an occupancy signal, or it can determine an error signal if the sensor element does not generate an occupancy signal.
  • a vehicle seat 11 is shown in a roughly simplified form, in the seat part 3 of which a sensor element 5 is installed, which together with an electronic control unit 7 is part of a seat occupancy detection.
  • the sensor element 5 is in signal connection with the electronic control unit 7, which is assigned to an occupant protection system of the vehicle. If the vehicle seat 11 is occupied by a vehicle occupant, their body weight acts on the seat surface 9 of the vehicle seat, whereby the sensor element 5 detects seat occupancy and generates a corresponding occupancy signal B and transmits it to the electronic control unit 7.
  • the signal output 13 of the sensor element 5 installed in the vehicle seat 11 is connected to an electronic test unit 15.
  • the test unit 15 is in signal connection with a robot arm 17, on the free end of which a test body 19 is mounted.
  • the test body 19 is approximately U-shaped in a view from above, with a U-base 21 approximately simulating an occupant's pelvis and the U-legs 23 protruding therefrom each simulating the occupant's thighs.
  • the electronic test unit 15, the robot arm 17 together with the test body 19 and the sensor element 5 are integrated in a control path by means of which the functional test of the seat occupancy detection can be carried out fully automatically.
  • the electronic test unit 15 has a database 18 as program modules in which, for example, a plurality of test forces F 1 , F 2 , F 3 ,... and a plurality of test body positions P 1 , P 2 , P 3 , ... are stored in a table and set up a test matrix.
  • a pair of values comprising test force F and test body position P is read out from database 18 and sent to a signal generation unit 16.
  • this On the basis of the pair of values (F, P) read out, this generates a control signal S with which the robot arm 17 presses the seat surface 9 with the test force F read out in the intended test body position P.
  • An evaluation unit 14 which is in signal connection with the signal input 13 of the sensor element 5, is used to determine whether a seat occupancy signal B is present or not. If there is a seat occupancy signal B, the evaluation unit 14 generates a functionality signal “1”. If there is no seat occupancy signal B, the evaluation unit 14 generates an error signal "0". The generated functionality signal “1” or the error signal “0” is read into the database 18 and assigned to the pair of values on the basis of which the test routine was carried out.
  • the test routine described above can be carried out with different pairs of values, which are composed of the differently sized test forces F 1 , F 2 , F 3 , ... and of the different test body positions P 1 , P 2 , P 3 , ... .
  • the evaluation unit 14 determines a functionality signal “1” or an error signal “0” for each pair of values F x , P x read out.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP20194244.8A 2019-10-21 2020-09-03 Procédé d'essai fonctionnel d'une reconnaissance d'occupation d'un siège de véhicule Pending EP3812737A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019128264.0A DE102019128264B3 (de) 2019-10-21 2019-10-21 Verfahren sowie Prüfanordnung zur Funktionsprüfung einer Sitzbelegungserkennung eines Fahrzeugsitzes

Publications (1)

Publication Number Publication Date
EP3812737A1 true EP3812737A1 (fr) 2021-04-28

Family

ID=72355828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20194244.8A Pending EP3812737A1 (fr) 2019-10-21 2020-09-03 Procédé d'essai fonctionnel d'une reconnaissance d'occupation d'un siège de véhicule

Country Status (2)

Country Link
EP (1) EP3812737A1 (fr)
DE (1) DE102019128264B3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100032777A1 (it) * 2021-12-28 2023-06-28 Comau Spa "Apparecchiatura e procedimento per testare in modo automatico un sistema di infotainment di un autoveicolo"

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5753834A (en) * 1996-12-19 1998-05-19 Lear Corporation Method and system for wear testing a seat by simulating human seating activity and robotic human body simulator for use therein
DE19810641C1 (de) 1998-03-12 1999-09-23 Daimler Chrysler Ag Prüfstand zur Sitzerprobung, insbesondere eines Kraftfahrzeug-Sitzes
DE10132110A1 (de) * 2000-07-05 2002-02-14 Denso Corp Verfahren zum Eichen der Empfindlichkeit von druckerfassenden Zellen eines Fahrzeugpassagiersitzes
US20040118178A1 (en) * 2002-12-18 2004-06-24 Mark Marentic Machine for testing occupant restraint system
WO2004069605A1 (fr) * 2003-01-31 2004-08-19 Robert Bosch Gmbh Dispositif pour controler un systeme de classification d'occupants installe au moins en partie dans un siege automobile
US20050138784A1 (en) * 2003-12-30 2005-06-30 Nathan John F. Method of testing a sensor array incorporated into a vehicle seat
EP1609663B1 (fr) * 2004-06-24 2007-03-21 Delphi Technologies, Inc. Procédé et dispositif de contrôle et/ou de calibrage d'appareils de surveillance occupant d'un siège de véhicule
JP2007271546A (ja) * 2006-03-31 2007-10-18 Fuji Heavy Ind Ltd 乗員検知システムの検査装置及び検査方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006030345B4 (de) * 2006-06-28 2010-11-18 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Dummykörper zur Erprobung von Sitz-, Liege- und Stützpolstern von gepolsterten Sitz- und Liegemöbeln
CN107449612B (zh) * 2016-05-30 2022-03-11 宝马股份公司 确定座椅的座椅单元的至少一个负荷特性的方法和系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5753834A (en) * 1996-12-19 1998-05-19 Lear Corporation Method and system for wear testing a seat by simulating human seating activity and robotic human body simulator for use therein
DE19810641C1 (de) 1998-03-12 1999-09-23 Daimler Chrysler Ag Prüfstand zur Sitzerprobung, insbesondere eines Kraftfahrzeug-Sitzes
DE10132110A1 (de) * 2000-07-05 2002-02-14 Denso Corp Verfahren zum Eichen der Empfindlichkeit von druckerfassenden Zellen eines Fahrzeugpassagiersitzes
US20040118178A1 (en) * 2002-12-18 2004-06-24 Mark Marentic Machine for testing occupant restraint system
WO2004069605A1 (fr) * 2003-01-31 2004-08-19 Robert Bosch Gmbh Dispositif pour controler un systeme de classification d'occupants installe au moins en partie dans un siege automobile
US20050138784A1 (en) * 2003-12-30 2005-06-30 Nathan John F. Method of testing a sensor array incorporated into a vehicle seat
EP1609663B1 (fr) * 2004-06-24 2007-03-21 Delphi Technologies, Inc. Procédé et dispositif de contrôle et/ou de calibrage d'appareils de surveillance occupant d'un siège de véhicule
JP2007271546A (ja) * 2006-03-31 2007-10-18 Fuji Heavy Ind Ltd 乗員検知システムの検査装置及び検査方法

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DE102019128264B3 (de) 2021-02-11

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